Definition of GUARANTEE

a formal agreement to fulfill an obligation <the contractors gave us a written guarantee that the work on the house would be done by Christmas>
something given or held to assure that the giver will keep a promise <you'll have to give your car keys as a guarantee that you'll come back>

Seen & Heard

What made you want to look up guarantee[noun]? Please tell us where you read or heard it (including the quote, if possible).

Get Our Free Apps
Voice Search, Favorites,
Word of the Day, and More
Join Us on FB & Twitter
Get the Word of the Day and More